论文标题

双重魔术的详细光谱$^{132} $ sn

Detailed spectroscopy of doubly magic $^{132}$Sn

论文作者

Benito, J., Fraile, L. M., Korgul, A., Piersa, M., Adamska, E., Andreyev, A. N., Álvarez-Rodríguez, R., Barzakh, A. E., Benzoni, G., Berry, T., Borge, M. J. G., Carmona, M., Chrysalidis, K., Costache, C., Cubiss, J. G., Goodacre, T. Day, De Witte, H., Fedorov, D. V., Fedosseev, V. N., Fernández-Martínez, G., Fijałkowska, A., Fila, M., Fynbo, H., Galaviz, D., Galve, P., García-Díez, M., Greenlees, P. T., Grzywacz, R., Harkness-Brennan, L. J., Henrich, C., Huyse, M., Ibáñez, P., Illana, A., Janas, Z., Jolie, J., Judson, D. S., Karayonchev, V., Kicinska-Habior, M., Konki, J., Kurcewicz, J., Lazarus, I., Lica, R., López-Montes, A., Lund, M., Mach, H., Madurga, M., Marroquín, I., Marsh, B., Martínez, M. C., Mazzocchi, C., Marginean, N., Marginean, R., Miernik, K., Mihai, C., Mihai, R. E., Nácher, E., Negret, A., Olaizola, B., Page, R. D., Paulauskas, S. V., Pascu, S., Perea, A., Pucknell, V., Rahkila, P., Raison, C., Rapisarda, E., Régis, J. -M., Rezynkina, K., Rotaru, F., Rothe, S., Sánchez-Parcerisa, D., Sánchez-Tembleque, V., Schomacker, K., Simpson, G. S., Sotty, Ch., Stan, L., Stanoiu, M., Stryjczyk, M., Tengblad, O., Turturica, A., Udías, J. M., Van Duppen, P., Vedia, V., Villa-Abaunza, A., Viñals, S., Walters, W. B., Wadsworth, R., Warr, N.

论文摘要

在Cern的Isolde设施中进行了调查,$β^ - 损失的$^{132} $ in In和$β^ - $β^ - $β^ - $β^ - $β^ - 延迟的中子排放$^$^ - delected Nepron nepration Nepration Nepration of $β^ - dermon nepration Nepration Nepration Nepration of $β^ - deled Nepration Nepration Nepration Nepration Nepration of $β^ - delect of $^ - 延迟的$^ - $^{132} $ sn的水平方案大大扩展,并在$β$衰减中首次观察到68 $γ$ - 过渡和17个水平。激发结构的信息由新的$γ$ - 过渡和$β$ -n衰减中的$^{133} $ in的状态完成。改进的延迟中子排放概率将获得$^{132} $ in和$^{133} $ in。级别的寿命是通过先进的延期$βγ$(t)快速定时方法来衡量的。基于实验发现和粒子孔构型的解释是由\ textIt {n} = 82和\ textit {z} = 50壳引起的核心孔构型,从而导致正质和负粒子孔孔多重。实验信息提供了新数据,以挑战$^{132} $ sn的理论描述。

The structure of the doubly magic $^{132}_{50}$Sn$_{82}$ has been investigated at the ISOLDE facility at CERN, populated both by the $β^-$decay of $^{132}$In and $β^-$-delayed neutron emission of $^{133}$In. The level scheme of $^{132}$Sn is greatly expanded with the addition of 68 $γ$-transitions and 17 levels observed for the first time in the $β$ decay. The information on the excited structure is completed by new $γ$-transitions and states populated in the $β$-n decay of $^{133}$In. Improved delayed neutron emission probabilities are obtained both for $^{132}$In and $^{133}$In. Level lifetimes are measured via the Advanced Time-Delayed $βγγ$(t) fast-timing method. An interpretation of the level structure is given based on the experimental findings and the particle-hole configurations arising from core excitations both from the \textit{N} = 82 and \textit{Z} = 50 shells, leading to positive and negative parity particle-hole multiplets. The experimental information provides new data to challenge the theoretical description of $^{132}$Sn.

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